12856611 has 8 divisors (see below), whose sum is σ = 17237584. Its totient is φ = 8523360.

The previous prime is 12856603. The next prime is 12856621. The reversal of 12856611 is 11665821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12856611 - 2³ = 12856603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12856601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11296 + ... + 12381.

It is an arithmetic number, because the mean of its divisors is an integer number (2154698).

Almost surely, 2^12856611 is an apocalyptic number.

12856611 is a deficient number, since it is larger than the sum of its proper divisors (4380973).

12856611 is a wasteful number, since it uses less digits than its factorization.

12856611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23861.

The product of its digits is 2880, while the sum is 30.

The square root of 12856611 is about 3585.6116633010. The cubic root of 12856611 is about 234.2657693320.

The spelling of 12856611 in words is "twelve million, eight hundred fifty-six thousand, six hundred eleven".